Solar: Japan bets on perovskites in ultra-fine panels

Ultra-fine. Furthermore. For example, flexible solar panels to be easily integrated into buildings and installed on rugged land: it is Japan’s bet to achieve its renewable energy objectives while fighting against the stranglehold of China in the sector.

Domestic iodide production – Solar: japan bets perovskites ultra-fine – Solar: japan bets perovskites ultra-fine new

These perovskite panels (type of mineral) constitute “our best asset to achieve. Meanwhile, both decarbonation. Furthermore, industrial competitiveness”, insisted in November the Japanese Minister of Industry, Yoji Muto.

Japan targets carbon neutrality by 2050. Consequently, And in total, the country wishes to install by 2040 enough solar panels in Pérovskite to have 20 electric gigawatts … Moreover, Power equivalent to that of 20 additional nuclear reactors.

What help him fulfill his goal of covering up to 50% of his electricity request by renewables on this date. In addition, The archipelago provides that solar solar: japan bets perovskites ultra-fine new energy then covers up to 29% of its total electricity demand against 9.8% over the year solar: japan bets perovskites ultra-fine 2023/2024.

A major advantage: iodide is a major component of perovskite panels. Furthermore, and Japan produces more than any other country, with the exception of Chile. However. Similarly. Moreover, the challenges remain massive: these panels are not yet manufactured in series, they produce less electricity than their silicon -based counterparts and have a lifespan of ten years against thirty for conventional silicon cells. And the toxic lead which they contain complicates their transformation.

Energy. economic security – Solar: japan bets perovskites ultra-fine – Solar: japan bets perovskites ultra-fine new

Among other generous incentives. the government offered a subsidy of 157 billion yen (908 million euros) to the sekisui chemical plastic manufacturer in order to build a factory capable of manufacturing enough perovskite panels up to 100 megawatts by 2027, something to supply 30,000 households.

“Perovskite -based panels can be manufactured solar: japan bets perovskites ultra-fine new locally. from the extraction of raw materials to production. installation: they could significantly contribute to energy and economic security,” Hiroshi Segawa, expert in these technologies at the solar: japan bets perovskites ultra-fine University of Tokyo, told AFP.

Against the background of intense international competition. maintained by Chinese. European and South Korean firms, Tokyo hopes to make this new technology a national pillar and prevent the debacle from Japanese manufacturers to Chinese solar panels.

Japan. silicon leader in the early years 200

In the early 2000s. photovoltaic cells with silicon made in Japan represented almost half of the world market: today, China controls more than 80% of the world solar supply chain, from the production of polysilicium to the manufacture of cells.

These silicon -based panels consist of fine plates transformed into cells. They must be protected by reinforced glass leaves. metal frames, which makes the finished products heavy and tough to handle.

Conversely. solar cells solar: japan bets perovskites ultra-fine new in perovskitis. are created by printing materials such as iodide and lead on films or glass plates and the final product may only measure a millimeter thick and weigh a tenth of solar: japan bets perovskites ultra-fine the weight of a conventional silicon cell.

The malleability of perovskite panels allows them to be installed on irregular and curved surfaces. Practical in a covered Japan at 70% mountains and where the flat land is very coveted. A 46 -storey tokyoist building under construction will be covered with these panels. The city of Fukuoka (southwest) also intends to line a dome-shaped baseball stadium.

In the windows of the skyscrapers?

And the Panasonic electronics giant is working on the integration of perovskite cells into the windows: enough to facilitate electricity. production where it is used. reduce the load on the national electricity network, explains Yukihiro Kaneko, a group’s research manager.

Energy demand is high in cities. but solar: japan bets perovskites ultra-fine new solar parks are often located in rural areas where land prices are low: “What if all these windows. of Tokyo buildings were equipped with photovoltaic cells?”, She wonders.

For Mr. Segawa. technology is progressing quickly: some laboratory prototypes solar: japan bets perovskites ultra-fine are almost as efficient as silicon cells. their sustainability should reach almost 20 years.

Perovskite in Japan could thus represent a capacity of up to 40 gigawatts by 2040, even ensures the academic. More generally, “it is not a simple question of silicon or perovskite. We must think about how to optimize our ability to use renewables,” he observes. “If Japan adopts a good model, it can export abroad”.